On Monday afternoon at 2:33 pm Sweet Home Fire was dispatched to a report of a head-on traffic collision on Hwy 228 and Greenville Road. Dispatch reported multiple patients were involved with one patient trapped under a vehicle. Sweet Home Fire units had been returning from a truck fire East of town when the call came in and responded with an engine and a command vehicle near Foster when first dispatched. Two medic units and an additional command vehicle responded out of station 21 and were first to arrive on scene. The Pumper Tender that was returning from the truck fire drove to station 21 and staffed a rescue unit. Life flight was requested and launched upon arrival of the first medic unit after seeing the extent of damage and injury report from dispatch. First arriving units found a total of four patients. Three of which were located in one vehicle that had came to a stop in the ditch and another more critical patient was found trapped under a vehicle on the roadway. Fire and EMS crews worked quickly to utilize extrication tools to raise the vehicle off the entrapped patient and moved the patient to the ambulance where the patient was treated and transported to the LZ where he was then flown to Riverbend Hospital. The other three patients were transported to Good Samaritan Hospital with non life threatening injuries by Sweet Home Fire and a Medic unit from Lebanon Fire who was requested for mutual aid. A total of 10 Sweet Home Fire personnel responded to this incident. If the arrival of the returning units had not occurred at that time, the outcome of this incident could have been much different with minimal staffing being available at the station at the time of the call. We would like to thank our neighbors from Lebanon Fire for their help and remind everyone to travel safe.